Dockerize

```
cd safaribooks
docker build . -t safaribooks
```

```
mkdir -p Books
docker run --rm -v $(pwd)/Books:/app/Books safaribooks --cred "my_email@gmail.com:MyPassword1!" 9781491958698
```

Dockerfile

@@ -0,0 +1,14 @@
+FROM python:3.6
+
+WORKDIR /app
+
+COPY requirements.txt ./
+COPY Pipfile ./
+COPY Pipfile.lock ./
+COPY register_user.py ./
+COPY safaribooks.py ./
+COPY sso_cookies.py ./
+
+RUN pip install --no-cache-dir -r requirements.txt
+
+ENTRYPOINT [ "python", "./safaribooks.py" ]

README.md

@@ -170,6 +170,22 @@ In this case, I suggest you to convert the `EPUB` to `AZW3` with Calibre or to `
     
 ---  
   
+## Using Docker
+
+Build the image:
+
+```shell
+$ cd safaribooks/
+$ docker build . -t safaribooks
+```
+
+Similar to the example in the [previous section](#examples), but using Docker:
+
+```shell
+$ mkdir -p Books
+$ docker run --rm -v $(pwd)/Books:/app/Books safaribooks --cred "my_email@gmail.com:MyPassword1!" 9781491958698
+```
+
 ## Thanks!!
 For any kind of problem, please don't hesitate to open an issue here on *GitHub*.